Printing-press.



n. MIEHLE. l

PRINTING PRESS.

APPLICATION FILED FEB. 3. 1917.

Patented Feb. 25,1919.

R. MIEHLE.

PRlNTING PRESS.

APPucAUoN FILED FEB. s. 1917.

Patented Fei). 25, 9l9.

5 swans-SHEET 2.

R. MIEHLE. PRIIIITIIIIG PRESS. APPLICATION FILED FEB. 3. 1917.

Patented Feb.25,1919.

wwwa.

5 SHEEI'S-SHEE 3.

Vl M Don n R. MIEHLE.

PRINTING PRESS.

APPLICATION FILED FEB. s. 1 917.

.Patented Feb. 25, 1919.

5 SHEETSSHEE 4.

R. MIEHLE.

PRINTING PRESS. APPLICATION FILED rss. a. 1917.

Patented Feb. 25, 1919.

5 SHEETS-SHEET 5.

l/Vl/ENTUR mi@ 'STMESATENT Orme ROBERT MIEHLE,v OF CHCAGQ .ILHNIS.

PRINTING-PRESS! To all whom t may concern.'

Be it known that I, ROBERT MIEI-ILE, citizen ofthe United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and usefulImprovement in Printing-Presses, ofwhich the following `is a full, clear, concise, and exact description.

My invention relates to printing presses and, in many of its aspects, isof particular service in connection with rotary printing presses. Theinvention has for one of its objects theY provision of mechanism wherebythe forms or printing faces of the printing orform cylinders are notunduly impaired in the printing operation, a result which I achieve bythe omission of direct gear connections between these cylinders wherebyeither is driven bythe other. The engaged cylinders are permitted topreserve their proper printing relation substantially uninfluenced bythe gearing which is employed to drive them and without slippage ofeither cylinder with reference to the other that would cause a rubbingor grinding action upon the form or printing surface upon the printingcylinder. As I have illustrated my invention herein it has been shownembodied in a type letter press but the invention is not to be thusrestricted.

l The press of my invention is of particular service in multi-colorprinting and when employed for this purpose I desirably use twoimpression cylinders, one for each color, though there arecharacteristics of the invention that are not to be limited to such anembodiment. When there are two impression cylinders there is a form orprinting surface individual to each.Y The forms or printing 1surfacesare desirably carried upon the same printing cylinder which is thencommon'to the' impression cylinders. The impression cylinders arerelatively adjustable to establish and break printing relation with theprinting cylinder inthe preferred embodiment of the invention.' j

My invention has for another ofits objects the provision of an improvedAinterrelation oft-ransfer cylinders with the impres' sion cylinders andthe timing thereof with? respect' to the impression cylinders and the,The invention has for its further.

sheets. object, in a'multi-color printing'press, 1mproved means foreffecting transfer from a transfer cylinder tothe impression cylinder'Specification of Letters Patent. Paggnted Feb. 25, 191e.

Application filed February 3, 1917. Serial lNo.r146,3 30. i

'that is lto take sheets therefrom whereby there will, be nointerference between the .printing surfaces of the sheets upon such:impression cylinder with the sheets on the transfer'cylinder sothat'printing'will not be offs'etrupon the latter' sheets.

yMy invention also has for its object'the provision of bodily adjustmentof a transfer cylinder toward and from its associate im- 'pressioncylinderfor' the purpose of preventing the offset of printing fromprinted .of the cylinders of the printing couple, a

gear connected with the other cylinder for drivingit, a driving 'gearcommon to said -train of gears and the aforesaid gear, and registeringmechanism having an element connected with each of said'cylinders.

There are many important features that relate to the gearing employed indriving the ,cylinders ofthe press, the mechanism yfor adjustinggrippers oftransfer cylinders, mechanism for timing and interrelatingop- -erations of various elements of the press, the movements of theimpression cylinders with respect tothe printing cylinder .and withrespect to the transfer cylinder or cylinders Vwhereby new and importantresults are sclcured, explanation of which will require reference to theaccompanying drawings illustrating the employment of the invention in a'.two color. type letterprinting press.

I will explain my invention more fully by reference to the accompanyingdrawings showing the preferred embodimentv thereof and in which Figure lis a view taken from the main gear side of the press,vparts being brokenaway in order that characteristics of construction` may be more fullyrevealed, other parts of the press which are well knownto those skilledj in the art being omitted; Figs. 2, 3, 4, 5 and 6 are sectional viewslooking from the otherV side of the press which respectively, showsomeofthe fjsuccessive positions of component parts of the mechanism; and Fig.7 is an end v iew of a part of the Vpress showing mechanism inders along.the lines 141, 181 I amialso enabled to secure 4the .desiredinterrelation between the4 impression 4 cylinderscand the transfercylinders.

The impression cylinders 14 and 18 are respectively individual totheform beds 8 and 7 and are provided with the usual mechanism whereby eachmay be brought into printing relation with the form. bed to which itisindividual and may be prevented from having printing relation with theother form bed when passing about the same and as this forms no part ofmy present invention a detail description thereof need not be furnished,it suliicing to say that such mechanism as that illustra-ted in myPatent 1,081,320, dated December 16, 1913 maybe employed for thispurpose, the cams being modified to suit the proper timing relation withthe movements of the impression cylinders and the form surfaces on theprinting` cylinder.

The sheets to be printed upon are fed to the first impressioncylinder-14, from the feed board or feed structure 23, the mechanism ofthe press changing its relationship to the paper being printed upon andhaving the relationship of its parts changed as illustrated in Figs. 2to G'incliisive, these figures takenv in their order, illustrating`successive steps in a cycle of operations from the time the sheet istaken from the feed board vuntil its transfer to the tapes ofthedelivery mechanism. These figures illustrate the progress of threesheets 24, 25 and 26 through the press. In Fig. 2 the grippers 27 havepartially withdrawn the sheet 24 from the feed board 23, this sheethaving been taken b v these grippers at the ends of the feed board guidetongues 231. The impression cylinders turn in a 'counterclockvvisedirection while the forni cylinder and transfer cylinders turn in aclockwise direction as viewed in Figs. 2 to 6 inclusive. As the cylinder14 turns the sheet 24 is laid thereon and the printing operation uponthe sheet commences short-ly after the gripped ends of t-he sheet 24reaches the beginning of the form bed 6 as indicated in Fig. 3,registering;` segments 28 and 29 being provided upon the impressioncylinder 14 and the form cylinder'.

In Fig. 4 printing upon the sheet 24 is in progress and in Fig. 5 theprinting upon sheet 24 is nearly concluded and one end of this sheet hasbeen taken by the grippers 30 upon the transfer cylinder 10 preparatoryto removing the sheet from the impression cylinder 14 and thereaftereffecting its transfer to the impression cylinder 18.- kDuring the timethat the sheet 24 has been taken from the feed board, is printed upon,and is taken by the grippers 30,as indicated in Fig. 5', the precedingsheet 25 hasbeen taken by the grippers 30 and passes thjroi'igh thestages illustrated in Figs. 2, 3,v 4 and 5.17. The im= pression cylinder18 has grippers 31 to which the sheet upon the cylinder 10 ,(sheet 25 asillustrated in Fig. 3) is transferred from the grippers 30, when theimpression cylinder 18 and transfer cylinder 10 are in the relationillustrated in Fig. 3, this transfer being effected when the impressioncylinder 18 is mid-way between its printing and nonprinting positions,the axis oncenter of the impression cylinder 18 then being in a radiusof the transfer cylinder 10, the gears 11 and 19 then being in mostperfect'mesh to insure proper registry of the sheet upon thecylinderrlS. The freshly printed or wet side of the sheet 25 liesagainst the sheet supporting portions of the transfer cylinder 10 whichare generally of tooth forni to reduce as far as possible contact withthe wet surface. In order to prevent the freshly printed side of thepaper sheet on the impression cylinder 18 and the sheet upon theitransfer cylinder 10 from coming in contact, I space these cylindersapart and maintain these cylinders in register by enlarging thediameters of the pitch circles of' their gears 15 and 16 so that thesepitch circles meet mid-way in the space betweenvsaid cylinders. `Inorder that the sheet t the sheet now being particularly borne in mind,this sheet having undergone the same .operation which was described inconnection with sheet 24) may be transferred from the cylinder 10 to thesecond impression cylinder 18 to undergo a second printing operation,means are provided for causing the approach of grippers upon one ofthese cylinders to the grippers upon the other cylinder. I desirablyemploy means, to this end, which does not involve the bodily movement ofeither cylinder 10 or 18 toward the other but merely involves themovement of the grippers upon one of such cylinders toward the grippersupon the other cylinder. The grippers which are moved with reference tothe cylinder carrying it and toward the grippers upon `the othercylinder are de sirably the grippers 30 that are carried by the transfercylinder 10. rllhe mechanism whereby the movement of the grippers 30with respect to the cylinder 10 toward and from the grippers 31 isdesirably inclusive of a shaft 32 journaled in the ends of the cylinder10, this shaft fixed-ly carrying arms 33 that terminate around the shaft34 which is journaled at its ends upon the arms LThe shaft 34 has fixedthereupon the gripper stops 35. Thebell crank levers Y 36 are iiXed uponthe shaft 34. The gripper rod 37 (the rod that carries the grippingfingers 30) is journaled in the upper ends of t-hefsaid bell cranltlevers 36. The lower ends of the bell crank are connected with thelii1ks'38 that are pivot-ed iiponthe cylinder 10; The arm 39 fixed tothe shaft 32and carries a roller l0 whose position. Vis influenced by'V'the Cam 41. YA

spring 42 maintains the roller 4() in engagement `with the cam 41 whensaid camis to operate to project the grippers toward the grippers 31 asindicated in Fig. 3. At other times the spring 42 operates to maintainthe gripper stop structure in engagement With the lug 43 whereby the camroller 40 is then relieved of engagement. This mechanisn'i operates tomove the grippers 30 and the gripper stops 35 ivhere they engage thesheet 25 in a manner not to cause creepage or backlash of the sheet uponthe cylinder 10 which would mar the printing. The elements 38 and 83 actas links in substantially parallel motion mechanism to the end laststated. The usual roller mechanism 44 is operated to close the grippers30 at the proper time.

After the sheet is taken by the grippers 31 of cylinder 18 the grippers80 are disengaged from said sheet and are bodily moved in toward theshaft 9 of the cylinder 10 after the cam roller 4() has passed out ofengagement with the cam 41 (Fig. 4). 1n the first revolution of thetransfer cylinder 10 when it receives the sheet the cam 41 is shiftedout of the range of the roller 40 so that in this first revolution thegrippers 30 will not be moved outwardly. In the second revolution of thecylinder 10 the cam 41 is brought into the range of the roller 40 sothat the grippers 80 may be moved toward the impression cylinder 18 forthe purpose stated. The mechanism that may be employed for this purposeis inclusive of an arm 45 upon the outer end of which the cam 41 iscarried, this arm being` pivoted at the point 46. The inner end of thearm 45 carries a cam roller 47 While the form cylinder carries a cam 48.The lower end of the arm 45 is heavy enough to maintain the cam 41against the shaft 9, in which position of the cam the roller 4() maypass over the cam Without engaging it (Fig. 2). When the cam 41 is inoperation upon the roller 40 the cam 48 engages the roller 47 and rocksthe arm 45 to move the cam 41 outwardly (Fig. 3), in which position ofthe cam 41 the roller 40 Will turn thereupon to move the grippers 8Ooutwardly as has been described.

1n the operation of the press the cylinder 18 is moved outwardly fromthe position illustrated in Fig. 3 to the position illustrated in Fig. 4after the grippers 31 take the sheet This operation is not requiredexcept when the cylinder 18 is tripped in the usual vWay since, in thetripping operation, the cylinder 18 has to bey moved from the positionshown in Fig. 3' to the position shown in Fig. 4 to enable theregistering gear segment49 to clear the registering gear segment 50 toseparate the orbits of said segments When a printing operation is to beomitted. The sheet supporting por- Lacasse tions of the impressioncylinders arealmost continuous'except Where the gripper-'s are disposedand are co-extensive With-the forms on the printing cylinder to Whichthey are individual whereby the printing cylinder has maximum formcapacity and the impression cylinders have maximum impression capacity.The spaces intervening between the forms upon the printing cylinder areco-extensive With the gaps or nonsheet supporting` portions of theimpression cylinders.` By this arrangement the maximum lineal speed ofthe paper through the press is obtained and maximum capacity is secured.The separation of the registering segments 49 and 50 is requiredv Whenthe cylinder 18 is tripped since the impression cylinder 18 does notmove on a. radial line of the form cylinder (Fig. 5) and therefore theregistering segments ivould not properly mesh in the oit' position ofthe impression cylinder 18 if the impression cylinder. could move nofarther outwardly than is indicated in Fig. 3. The pair of registeringsegments 49 and 50 are in a different plane of rotation from the planeof rotation of the pair of registering segments 28 and 29 so that theregistering segment upon either impression cylinder ivill not engage theregistering segment upon the'form that is individual to the otherimpression cylinder.

After the sheet 25 has undergone this second print-ing operation Whileupon the cylinder 18 it is discharged (directly or indirectly) upon thedelivery tapes 51. By the mechanism illustrated in Figs 2, 8 and 5 thestripping lingers 52 strip the sheet from the cylinder 18 and guide itupon the tapes 51. Rollers 53 engage marginal portions of the paper(parts of the paper not printed upon) to cause the paper to travel withthe cylinder 18 thereby to insure the discharge of the paper upon thetapes.

In case the sheets being printed upon are of such a nature that theycannot Well be discharged from the press by the mere cooperation of therollers 53 and the strippers 52, I employ a transfer cylinder 22 Whosegrippers 54 may be set by the attendant not to close upon their stopsWhen the discharge upon the tapes is to be effected by the cooperationof the rollers 53 and strippers 52. When the transfer cylinder 22 (Figs.4 and 6)V is to effect the discharge of the sheet these grippers arearranged' in coperative relation With their stops to enable them togripl the sheets. A suitable device for adjust-- ing the grippers isindicated at 55 which includes a hand leve-r 56 and the eccentricmechanism illustrated, the Working parts of the adjusting device beingheld in posi:- tions to which they are adjusted by friction. Thetransfer cylinder 22`is bodily moved away from the cylinder 18 after itsgrippers have taken the sheet and after Ithe printing has beencompleted, to `which end the shaft 21 is carried in an eccentric -57turning within a frame 58 that is in rigid connection with the journalboxes 182 of the cylinder 18. This eccentric 57 has an arm 59 by meansof which it may be turned for the purpose of moving the impressioncylinder 22 in and out. The mech- -anism employed for moving the armdesirpression cylinder. Ihe eccentric mechanism and the mechanism foroperating the same which has been described is desirably duplicated atboth sides of the press except cam 60 and arm 61. After the paper whichhas been transferred to the cylinder 22 is laidr upon the same and thiscylinder has made onel revolution and the grippers 54 have passedsufiiciently above the tapes 51, such grippers are released fromengagement with the paper and the tapes carrying the paper tothedeliveryv mechansim. The transfer cylinders are provided with sheetguards 65 (for the cylinder 10) and 66 (for the cylinder 22). The guards65 pertaining to the cylinder 10 are stationary, as usual. The guards 66are proviyded with mechanism whereby the points thereof follow thebodily movement of the cylinder 22. To this end the guards 66 may befiXedly mounted upon a rod 67 journaled in the upper ends of the arms 68that are carried by the frame 58. Arm 69 is also in fixed relation tothe rod 67 and carries roller 70 at its lower end. The rod 67 is sopositioned that. the weight of the guards 66 and the arm v69 `maintainthe roller 70 in engagement with the transfer cylinder 22 in allpositions to which this transfer cylinder is bodily adjusted. f

Certain features of construction are illustrated and not specificallydescribed as their operation is well known by those skilled in the art.Among these are the-stripping fingers 52 and the mechanism for openingand closing the grippers upon the transfer and impression cylindersandfalso the ink rollers 72 which are individually adjustable toward andfrom the printing cylinder.

It will be seen that I have provided a printing press with an impressioncylinder adapted to receive a sheet and print thereuponlduring the firstrevolution of its cycle and to discharge the sheet during the secondrevolution of its cycle, a transfer cylinder adapted, in the firstrevolution of its cycle, to receive the sheet being discharged from saidimpression cylinder and inthe second revolution of its cycle tocdischarge said sheet, a second impression cylinder adapted, in thefirst revolution of its cycle, to receive and print thereupon the sheetvdischarged from the transfer cylinder and, in the sec'- ond revolutionof itscycle, to discharge such sheet, and rotary printing meanscoperating with said impression cylinders inprinting. This press, as theinvention is herein illustrated, includes a printingcylinder common tothe impression cylinders and having printing surfaces one for andindividual to each impression cylinder, and means for causing thevrevolution of each impression cylinder a plurality of times for arevolution of the printing cylinder. It will also be seen that wherethey second transfer cylinder is employed it serves, in the firstrevolution of its cycle, to receiverthe sheet being. discharged from thesecond impression cylinder and, in the second revolution of its cycle,to discharge saidV sheet,there being automatic means for moving thissecond transfer cylinder away from the second impression cylinder uponthe discharge of a sheet from the latter cylinder." While I'y haveherein shown and particularly described the preferred embodiment of myinvention I do not wish to be limited to the precise details ofconstruction shown as changes may readily be made without departing fromthe spirit of my invention, but having thus described my invention Iclaim as new and desire to secure by Letters Patent the ffollowingz* 1-.A rotary printing press including a printing cylinder; an impressioncylinder,

said cylinders being relatively adjustable to establish and breakprinting relation between them; a gear having connection with theimpression cylinder; a gear in mesh with and driving the aforesaid gear,the axes of rotation of these gears being substantially a fixed distanceapart whether said cylinders are in printing or non-printing relation;and a transfer cylinder co-aXial .with the second gear. 2. A rotaryprinting press including a printing cylinder; an impression cylinder,said cylinders being'relatively-adjustable to 115 establish and breakprinting relation between them; a gear having connection with theimpression cylinder; means other than the printing cylinder for drivingsaid gear; and a transfer cylinder also operated by said means. v

3. A rotary printing pressv including a printing cylinder; an impressionc. linder,

a xed distance apart whether said cylinders Y 'are in printing ornon-printing relation; a third gear having connection With the printingcylinder and driven bythe means that drives the second gear; and: atransfer cylinder co-axial .Wi-th the-second gear.

4i. A rotary printing press including a printing cylinder; animpression. cylinder; said. cylinders beingy relatively adjustable toestablish; and break printing krelation `between them; a gear havingconnection with the impression cylinder; a gea-r-y in mesh with andVdriving the aforesaid` gear; the axes oflrotation. of these gears beingsubstantially a fixed;v distance apartvvhether. said cylinders are in.printing manoir-printing. relation; a thirdV gear havingconnection` Withthe printing cylinder and" driven by the second gear; and a-transfercylinder co-aXial with4 the second'y gear;

5. A rotary printing` press including a printing cylinder; animpression. cylinder, said .cylinders being relatively adjustable toestablish and.A break printingl relation between them; mechanismcommonto said'vcylinders for. rotating-them and operating upon theimpression cylinder independently ofthe printing .cylinderv in theprinting and .nonprinting operations; anda transfer cylinder alsooperated by said. mechanism.

6.A rotaryj printing-press including a printing cylinder; an.impression.` cylinder, said-.cylinders being relatively adjustable toestablish and break printing relation between them; mechanism common'toY said cylinders for rotating-them and operating upon the impressioncylinder independently of the printing` cylinderi; and a transfercylinder also operated'by said mechanism.

7. A rotaryl printing'` press-includingfa printing cylinder; animpression cylinder; a gear having connection With the impressioncylinder.; Iav gearl in mesh AWithandidriving the aforesaid gear,l theaxes ofjrotation of. thesel gears being substantiallyfa fixed distanceapart; .a third gearV1 having connertion with the printing cylinder-andldriven by the means that drives the second. gear; and a .j transfercylinder co axial i' With -the second gear.

I8. A, rotaryy printing. press including a printingcylinder.; animpression cylinder; a gearhaving connection with the impression:cylinder; a gear` in mesh with and drivingvth'e aforesaid gear, the axesof lrotation of thesefgearsbeing-substantially a fixed distance apart; athird gear hav-ing connection` with.y the Y. printingcylinder and drivenbyvthe second-gear;.and a transfer cylinder cao-axialwithl the secondgear.

' 9. A rotary printing press including a printingcylinder;an impressioncylinder; niechanismi commonfto said rcylinders for rotating-.them andoperating upon the impressioni "cylinder independently of theprintingcylinder-in th'eprinting and nonprinting operations ;l and-atransfer cylinder also operated by sald mechanism,

l0. A rotary printing press including a printing cylinder; an impressioncylinder; a gear having connection With the impression cylinder; meansother than the printing cylinder for driving said gear; a transfercylinder also operated by said means; andV a second impression cylindercoperating with the printing cylinder, said transfer cylinder operating`to transfer sheets fromone impression cylinder to the other.

1l, A rotary printing press including a printing cylinder; an impressioncylinder, said cylinders being relatively adjustable to establish andbreak printing relation between them; a gear having connection with the.impression cylinder; a gear in mesh with and driving the` aforesaidgear7 the axes of rotation of these gears being substantially a xeddistance: apart ,Whether said. cylinders are in printing ornon-printingl relation; a transfer cylinder co-axial With the secondgear; and a second implies` sion cylinder coperating with the printingcylinder,- saidtransfer cylinder operating to transfer sheets from` oneimpression cylinder tothe other.

l2. A rotary printing press4 including a printingcylinder; an impressioncylinder, said cylinders being relatively adjustablefto establish andbreak printing Vrelation between them; a gear having connection With theimpression cylinder; means other than the printing-cylinder for drivingsaid gear; a transfer cylinder'. alsoA operated by said means; and asecond impression cylinder cooperating With the printing cylinder, saidtransfer cylinder' operating to transfer sheets from one impressioncylinder to the other.

13. A rotary printing press including a printing cylinder; an impressioncylinder, said cylindersbeing relatively adjustable to establish andbreak printing relation betweenthem; a gear having connection With theimpression cylinder; a gear in mesh with and driving the aforesaid gear,the axes of'rotation of these gears beingsubstantially a fixed distanceapartwhether said cylinders are in printing or non-printing relation; athird gear having connection with the printving cylinder and driven bythe means that drives the second gear; a transfer cylinder co-aXia'lWith the second gear; and a second impression cylinder coperating Withthe printing cylinder, said transfer cylinder operating to transfersheets from one impression cylinder to the other.

14; A rotary` printing press including a printing cylinder; anVimpression cylinder, said cylinders being relatively adjustable toestablish and break printing relation between them; a. gear havingconnection With the impressionV cylinder; a gear in mesh -withanddriving the aforesaid gear, the

axes of rotation of these gears being substantially a iXed. distanceapart whether said cylinders are in printing or non-printing relation; athird gear having connection with the printing cylinder and driven bythe second gear; a transfer cylinder co-axial with the second gear; anda second impression cylinder cooperating with the printing cylinder,said transfer cylinder operating to transfer sheets from oneimpressioncylinder to the other.

15. A rotary printing press including a printing cylinder; an impressioncylinder, said cylinders being relatively adjustable to establish andbreak printing relation between them; mechanism common to said cylindersfor rotating them and operating upon the impression cylinderindependently of the printing cylinder in the printing and non-printingoperations; a transfer cylinder also operated by said mechanism; and asecond impression cylinder coperating with the printing cylinder; saidtransfer cylinder operating to transfer sheetsk from one impressioncylinder to the other.

16. A rotary printing press including a printing cylinder; an impressioncylinder, said cylinders being relatively adjustable to establish andbreak printing relation between them; mechanism common to said cylindersfor rotating them and operating upon the impression cylinderindependently of the printing cylinder; a transfer cylinder alsooperated by said mechanism; and a second impression cylinder coperatingwith the printing cylinder, said transfer cylinder operating to transfersheets from one impression cylinder to the other.

17. A rotary printing press including a printing cylinder; an impressioncylinder; a. gear having connection with' the impression cylinder; agear in mesh with and driving the aforesaid gear, the axes of rotationof these gears being substantially a fixed distance apart; a third gearhaving connection with the printing cylinder and driven by the meansthat drives the second gear; a transfer cylinder co-aXial with thesecond gear; and a second impression cylinder cooperating with theprinting cylinder, said transfer cylinder operating to' transfer sheetsfrom one impression cylinder to the other.

18. A rotary printing press including a of these gears beingsubstantially a fixed:

distance apart; a third gear having conec# ion with the printingcylinder and driven by the second gear; a transfer cylinder co* axialwith the second gear; and a second impression cylinder coperating withthe printing cylinder, saidtransfer cylinder operating to transfersheets from one impression cylinder to the other. v

19. A rotary printing rpress including a printing cylinde; an impressioncylinder; mechanism common to said cylinders for rotating `them andoperating upon the impression cylinder independently of the printingcylinder in the printing and nonprinting operations; a transfer cylinderalso operatedby said mechanism; and a second impression cylindercoperating with the printingV cylinder, said transfer cylinder operatingto transfer sheets from one impression cylinder to the other.

20. A rotary printing press including a printing cylinder; an impressioncylinder, said cylinders being relatively adjustable to establish andbreak printing relation between them; a gear having connection with theimpression cylinder; means other than the printing cylinder for drivingsaid gear; a transfer cylinder also operated by said means; and a secondimpression cylinder cooperating with the printing cylinder andadjustable with respect to the printing cylinder to establish and breakits printing relation therewith` said transfer cylinder operating totransfer sheets from one impression cylinder to the other. Y

21'. A rotary printing lpress including a printing cylinder; animpression cylinder, said cylinders being relatively adjustable toestablish and break printing relation betweenthem; a gearfhavingconnection with the impression cylinder; a gear in mesh with anddriving-the aforesaid gear7 the axes of rotation vof these gears lbeingsubstantially a iiXed distance apart whether said cylinders are inprinting or non-printing relation; a third gear having connection withthe printing cylinder and driven by the means that drives the secondgear; a transfer cylinder co-aXi-al with the second gear; and a secondimpression cylinder coperating with the printing cylinder and adjustablewith re spect to the printing cylinder to establish and break itsprinting relation therev-Jith,

said transfer cylinder operating to transfer sheets from one impressioncylinder to the other.

22. A rotary printing press including a A printing cylinder; animpression cylinder,y

said cylinders being relatively adjustable to establish aud'hreakprinting relation betweeny them; a gear "liavin'g connection with'theimpression cylinder; a gear in mesh with and driving the aforesaidgear, the axes of rotation of these gearsfbeing substantially a fixeddlstancelapart ,vhether said cylinders are in printing or non-printingrelation; a

third gear having connection With the print ing cylinder and driven bythe second gear; a transfercylinder co-aXial with the second gear; and asecond impression cylinder c0- operating with theprinting cylinder andadnjustabile with `respect to the printing cylinder to establish andbreak its printing re lation therewith,- said` transfer cylinderoperatingto transfer sheets from one impression cylinder tothe other.

23. A rotary printing press including a printing cylinder; an impressioncylinder, said cylinders being relatively adjustable to establish andbreak printing relation 'between them mechanism common to said.cylinders for rotating them and operati-ng upon the impression cylinderindependently ofthe printing cylinder in the printing and nonprintingoperations; a transfer cylinder also operated by said mechanism; and asecond impression` cylinder coperating with theprinting cylinder andadjustable with respect to the printing cylinder to establish and. breakits printing relation therewith, said transfer cylinder operating totransfer sheets from one impression cylinder to the other.

24. A rotary printing press including a printing cylinder; an.impression cylinder, said cylinders being relatively adjustable toestablish and break printing relation between them; mechanism common tosaid cylinders for rotating them and operating upon the impressioncylinder independently of the printing cylinder; a. transfer cylinderalso operated by said mechanism; and a second impression cylindercoperatingwith the printing` cylinder and adjustable with respect to theprinting cylinder to establish and break its printing relationtherewith, said transfer cylinder operating to transfer sheets from oneimpression cylinder to the other.

A rotary printing press includin a. printing cylinder; an impressioncylin er; said cylinders being relatively adjustable to establish andbreak printing relation between them; a gear having connection with theimpression cylinder; a gear in mesh with and driving the aforesaid gear,the axes of rot-ation of these gears being substantiallya fixed distanceapart whether said cylinders are in printing or non-printing relation; atransfer cylinder co-aXia'l with the second gear; and a secondimpression cylinder, `said transfer cylinder operating to transfersheets from one impression -cylinder to the other.

26. A rotary printing press including a printing cylinder; an impressioncylinder, .said cylinders being relatively adjustable to establish andbreak printing relation between them; a. gear having connection with theimpression cylinder; means other than the printing cylinder for drivingsaid gear; a transfer cylinder yalso operated by said means; and a`second impression cylinder, said transfer cylinder operating totransfer Lees-555s;

sheets.: from oneimpression cylinderl to. theV other.

QA rotary printing pressi` including a. printing cylinder; an:impressiony cylinder;y saidicylinders being relatively adjustable toestablish and break. printing relation between thein; a gear havingconnection with the' impression cylinder a gear in mesh printingcylinder; an impression cylinder7 said cylinders being; relatively adjustablel to establish and break printing relation be tween .then'ig agear lia-ving connection with the impression cylinder; agear in meshwith and driving the aforesaid gear, the axes of rotation of these gearsbeing substantially alli-ved distance apart whether said cylinders arein printing @nnen-printing relation.; a third gear having. connectionwith the print-ing cylinder and driven by the second gea-r;` a transfercylinder cof-axial with the second' gea-r; and a second impressioncylinder, saidk transfer cylinder operating to transfer sheets from oneimpression cylinder to the other..

29. A rotary printing press including a printing cylinder; an impressioncylinder,`

said, c linders being relatively adjustable to estaby shand breakprinting relation betweenk them; mechanism common to`v said cyl--inclers for rotating them and operating upon the-impression cylinderindependently of the printing cylinder in the printingv and non printingoperations; a transfer cylinder also operated by said mechanism; and asecond impression cylinder, said transfer cylinder operating to transfersheets from one impression cylinder tothe other.

30. A rotary Vprinting press: includingl a printing cylinder-g'. animpressi-onl cylinder; said cylinders` beingA relatively adjustable toestablish and break printing relation. betweenk them; mechanism commonto said cylinders for rotatingthem and operating upon the impressioncylinder independently of the printing cylinder; a transfer cylinderalso operatedby said mechanism.; anda second impression cylinder, saidtransfer cylinder operating to transfer sheets from one impressioncylinder to the-other.

31.A rotary printing press; including Aa printing cylinder; animpression cylinder;

a gear having connection with the vimpression cylinder; a gear in meshwith and driving the aforesaid gear, the axes Vof rotation of thesegears being substantially a iiXed distance apart; a third gear havingconnection with the printing cylinderand driven by the ineansthat drivesthe .second gear; a transfer cylinder co-aXiaL with the second gear; anda second impression cylinder, said transfer cylinder operating vtotransfer sheets from one impression cylinder to the other.

32. A rotary printing press including a printing cylinder; an impressioncylinder; a gear having connection with the impression cylinder; a gearin mesh with and driving the aforesaid gear7 the axes of rotation ofthese gears being substantially a iXed distance apart; a third gearhaving connection with the printing cylinder and driven by the secondgear; a transfer cylinder coaxial with the second gear; and a secondimpression cylinder, said transfer cylinder operating to transfer sheetsfrom one impression cylinder to the other.

33. A rotary printing press including a printing cylinder; an impressioncylinder;

4mechanism common to said cylinders for rotating them and operating uponthe impression cylinder independently of the printing cylinder in theprinting and nonprinting operations; a transfer cylinder also operatedby said mechanism; and a second impression cylinder, said transfercylinder operating to transfer sheets from one impression cylinder tothe other.

34. A rotary printing press including impression cylinders; a` transfercylinder for transferring sheets from one impression cylinder to theother; a printing cylinder having forms thereupon eachv individual .toan impression cylinder and co-extensive with the sheet supporting orimpression portion of such impression cylinder; mechanism for movingeach impression cylinder away from the printing cylinder when the formupon the printing cylinder that is individual t0 the other impressioncylinder is passing thereby and for restoring printing relation thereofwith the 4printing cylinder when its own forni is passing thereby; andmechanism for causing a plurality of revolutions ofeach of theimpression and transfer cylinders for each revolution of the ,printingcylinder.

35. A rotary printing press including impression cylinders; a transfercylinder for transferring sheets from one impression cylinder to theother; a printing cylinder hav.- ing forms thereupon each individual toan impression cylinder and co-eX-tensive with the sheet supporting orimpression portion of such impression cylinder; mechanism for movingeach'impression cylinder away from the printing cylinder when the formupon the printing cylinder kthat is individual to vthe other impression'cylinderis passing der which is individual to such ,impression cylinder.-v

36. A rotary printing press including impression cylinders; a transfercylinder for transferring sheets from one impression cylinder to theother; a printing cylinder having forms thereupon-each individual to an1 impression cylinder and co-eXtensive with the sheet supporting orimpression portion of such impression cylinder; mechanism for movingeach impression cylinder away from the printing cylinder when the formupon the printing cylinder that-is individual to the other impressioncylinder is passing thereby and for restoring printing relation thereofWith the printing cylinder when its own form is passing thereby;mechanism for causing a plurality ofk revolutionsof each of theimpression and transfer 'cylinders for each revolution of the printingcylinder; and aA registering mechanism for each impression cylinder onesegment upon such impression cylinder and .a complemental segment-at theform upon the printing cylinder :which is individual to suchiin-pressioii cylinder.

37. A rotary printing press including iml pression cylinders; vatransfer cylinder for transferring sheets from one impression cyl-.inder to the other; a printing cylinder having forms thereuponeachindividual to an impression cylinder and cO-eXtensive with y thesheet supporting or impression portion `of sucli impression cylinder;mechanism for moving each impression cylinder away from the printingcylinder when the form upon the printing cylinder that is individual tothe other impression cylinder is passing thereby and for restoringprinting relation thereof with the printing cylinder when its own formis `passing thereby; mechanism for causing a plurality of revolutionsof'each of the impression and transfer cylinders for each revolution oftheprinting cylinder; and a registering mechanism for each irnpressioncylinder onesegment upon such impression cylinder and a complementalsegment at the form upon the-printing cylinder which is individual tosuch impression cylinder,tlie` registering segment at each form upon theprinting cylinder being out ofthe -pression cylinders; a transfercylinder for transferring sheets from one impression cylinder to theother; a printing cylinder hav- 'ing forms thereupon each individual toLan impression cylinder and co-extensive With the sheet su-pporting orimpression portion of such impression cylinder; mechanism for movingeach impression 4cylinder away from thel printing cylinder when the formupon the printing cylinder' that is individual to the other impressioncylinder is passing thereby and for restoring printing relation thereofWiththe printing cylinder when its oWn form is passing thereby; andmechanism for causinga plurality of revolutions of each ofthe impressionandtransfer cylindersfor4 each revolution of lthe' printing cylinder,the axis of the transfer cylinder being 'maintained substantially a'fixed distance from the' axis of each impression cylinder.

89. A rotary printing press including impression cylinders; atransfercylinder for transferring sheets from one impression cylinder to theother; a printing cylinder having forms thereupon each individual to animpression cylinderr and co-extensive with vthe sheet'su'pporting orimpression portion the printing cylinder that is individual to the otherimpression cylinder is passing thereby and for restoring printingrelation thereof with the printing cylinder When its own form is passingthereby; mechanism for ycausing a Iplurality of revolutions of each ofthe iin-pression and transfer cylinders for Veach revolution of theprinting cylinder;

and zii-registering mechanism for each inipression cylinder having oneelement upon each impression cylinder and the other at the foim upon theprinting 'cylinder which is individual to suchy impression cylinder, theaxis of the tran'sfercylinder beinginaiiitained substantially a fixeddistance from the axis of each impression cylinder.

1li).v A rotary printing ypress including impression cylinders; atransfer cylinder for transferring sheets Afrom one impression cylinderto the other; a' printingl cylinder having forms thereupon eachindividua-l'to an impression cylinder andv` co-extensive with the sheetsupportingor impressionA portion of such impression cylinder; mechanismfor movingeaclrimpression cylinder away from the printing cylinderivhenthe form upon the' printing cylinderthat 'is'A individual to the`A-other impression cylinder is passing tlfiereby-r andA for restoringlprinting relation thereof with the printingcylindei ivhen its ownform-is passing thereby; mechanism for causing a'plurality ofrevolutions of each of the impression and transfer cylinders for eachrevolution of the printing cylinder; and a registering mechanism foreach impression cylinder one segment u-pon each impression cylinder anda'complemental segment at the form upon the printing-cylinder which isindividual to such impression cylinder, the axis of the transfercylinder being maintained substantially a fixed distance from the axisof each impression cylinder.

Lll. A rotary printing press including impression cylinders; a transfercylinder for transferring sheets from one impression cylinder to theother; a'printing cylinder having foiins thereupon each individual to animpression cylinder and co-extensive With the sheet supporting orimpression portion of suoli impression cylinder; mechanism for movingeach impression cylinder aivay from the printing cylinder when the formupon the printing cylinder that is individual to the other impressioncylinder is passing thereby and for restoring printing relation thereofwith the printing cylinder When its own form is passing thereby;mechanism for causing a plurality of revolutions of each of theimpression and transfer cylinders for each revolution of the printingcylinder; and a registering mechanism for each impression cylinder onesegment upon such impression cylinder and a complemental segment at theform upon the printing cylinder which is individual to such impressioncylinder, the registering segment at each form upon the printingcylinder being out of the plane of operation of the registeringsegmentupon the impression cylinder that is not-individual to such form; theaxis of the transfer cylinder being maintained substantially a .fixeddistance from the axis of each impression cylinder.

42. A rotary printing press including impressioncylinders; a transfercylinder for transferring sheets from one impression cylinder to theother; a printing cylinder having forms thereupon each individual to animpression cylinder and co-extensive with the sheet supporting orimpression portion of such impression cylinder; mechanism for movingeach impression cylinder aivay from the printing cylinder ivhen the formupon the printing cylinder that is individual to the other impressioncylinder is passing thereby and for restoring printing relationthereof'ivith theprinting cylinder when its own form is passing thereby:mechanism for causing a plurality ofy revolutions of each of theimpression and transfer cylinders for each revolution of the printingcylinder, the transfer cvlinder being spaced apart from the secondimpression `cylinder and means for bringing the sli'eet into position tobe taken by the second impression cylinder.

48. A rotary printing press including impression cylinders; a transfercylinder for 'transferring sheets from one impression cylinder to theother; a printing cylinder having forms thereupon each .individual to animpression cylinder and ycin-extensive with the 'sheet supporting orimpression portion of such impression cylinder; mechanism for movingeach impression cylinder away from the printing cylinder when the formupon the printing` cylinder that is individual to the other impressioncylinder is passing thereby and for restoring printing relation thereofwith the printing cylinder when its own form is passing thereby;mechanism for causing a plurality of revolutions of each of theimpression and transfer cylinders for each revolution of the printingcylinder; a registering mechanism for each impression cylinder havingone elelnent upon each impression cylinder and the other at the formupon the printing cylinder which is individual to such impressioncylinder, the

of such impression cvlinder; mechanism forv moving each impressioncylinder away from the printing cylinder when the form upon the printingcylinder that is individual to vthe other impression cylinder is passingthereby and for restoring' printing relation thereof with the printingcylinder when its own form is passing thereby; mechanism for causing aplurality of revolutions of each of the impression and transfercylinders for each ievolutioii of the printing cylinder; a registeringmechanism for each impression cylinder one segment upon such impressionlcylinder and a compleinental segment at the formy upon the printingcylinder which is individual to such impressionrcylinder, the transfercylinder being spaced apart from the second impression cylinder; andmeans for bringing the sheet into position to be taken by the secondimpression cylinder.

45. A rotary printing press including impression cylinders; a transferYcylinder for transferring sheets from one impression Ycylinder to theother; a printing cylinder having forms thereupon each individual-to animpression cylinder and coeXtensive With the sheet supporting orimpression portion of -such impression cylinder; mechanism for movingeach impression cylinder away from the printing cylinder when the formupon the printing cylinder that is individual tothe other impressioncylinder isv passing thereby and for Arestoring printing relationthereof with the printing cylinder when itsown form is passingthereby;mechanism for causing a plurality of revolutions of each of the'impression and transfer cylinders for each revolution of the printingcylinder; a registering mechanism for each impression cylinder onesegment upon such impression cylinder and a com-plemental segment at theform upon the printing cylinder which is individual to such impressioncylinder, the registering segment at each form upon the printingcylinder being out of the plane of operation of the lregistering segmentupon the impression cylinder that is'not individual to such form, thetransfer cylinder being `spaced apart from the secondimpressioncylinder; and means for bringing the sheet pression cylinder. l

4G. A rotary printing press including impression cylinders; a transfercylinder for linto position to be taken by the second imtransferringsheets from one impression v cylinder to the other; a 'printing cylinderhaving forms thereupon yeach individual to an impression cylinder `andco-extensive'with the sheet supporting or impression portion of suchimpression cylinder; mechanism for 'moving each impression cylinder awayfrom the printing cylinder when the form upon the printing cylinder thatis individual' to the other impression cylinder is passing thereby andfor restoring printing relation thereof with the printing cylinder whenits own form is passing thereby; mechanismfor' causing a plurali-ty ofrevolutions of each of the impression and transfer cylinders for cach'revolution of the printing cylinder, this axis of the transfer cylinderbeing maintained substantially a iiXed distance from the axis of eachimpression cylinder, said transfer cylinder and the second impressioncylinder having grippers; l and means for moving the grippers of one ofthese cylinders across the gap between the cylinders to enable thegrippers upon the second impression cylinder to take the sheet.

47. A rotary printing press including impression cylinders; a transfercylinder for transferring sheets from one impression cylinder totheother; a printing cylinder having forms thereupon eachindividual toan impression cylinder and co-eXtensive with the sheet supporting -orimpression Vportion of such impression cylinder; mechanism for movingeach impression cylinder away from the printing. cylinder whenV the formupon the printingcylinderthatis individual to the" other impressioncylinder is passingf thereby and'for restoring printing relation thereofwith the printing cylinder when its iown form is passing thereby;mechanism for causing a plurality of revolutions of each of theimpression and transfer cylinders for each revolution of the printingcylinder; a registering mechanism for each impression cylinder havingone element upon each impression cylinder and the other at the form uponthek printing cylinder which is individual to such impression cylinder7the axis `ofthe transfer cylinder being maintained substantially a fixeddistance from the axis of each impression cylinder, said transfercylinder and the second impression cylinder having grippers; and meansfor moving the grippers of one of these cylinders across the gap betweenthe cylinders to enable the grippers upon the second impression cylinderto take the sheet.

48. A rotary printing press including impression cylinders; a transfercylinder for transferring sheets from one impression cylinder to theother; a printing cylinder having forms thereupon each individual to animpression cylinder'and co-extensive with the sheet'supporting orimpression portion of such impression cylinder; mechanism for movingeach impression cylinder away from the printing cylinder when the formupon the printing cylinder that is individual to the other impressioncylinder is 4passing thereby and for restoring printing relation thereofwith theprinting cylinder when its own form is passing thereby;mechanism for causing a plurality of revolutions of each oftheimpression and transfer cylinders for each revolution of the printing`cylinder; a registering mechanism for each impression 'cylinder onesegmentupon each impression cylinder and a complementalsegment at theform upon the printing cylinder which is individual to such impressioncylinder, the axis of the transfer cylinder being maintainedsubstantially a fixed distance from the axis of each impressioncylinder, said transfer cylinder and the second impression cylinderhavingl grippers; and means for moving` the grippers of one of thesecylinders across thev gap between the cylinders to enable the grippersupon the second impression cylinder to 'take-the sheet.

49. A rotary. printing-press including impression cylinders; a transfercylinder for transferringsheets from one impression cylindento the'other; a printing cylinder havingforms thereupon each individual to animpression cylinder and co-extensive with the sheet supportingorimpression portion of such impression cylinder; mechanism for movingeach impression cylinder away from the printing 4cylinder when the formupon theY printing cylinderthatfis individual to the other impressioncylinder is passing thereby and for restoring printing relation thereofwith the printing cylinder when its own form is passing thereby;mechanism for causing aplurality of revolutions of each of theimpression and transfer cylinders for each revolution of the printingcylinder; a registering mechanism for each impression cylinder onesegment upon such impression cylinder and a complemental segmentat theform upon the printing cylinder which is individual to such impressioncylinder, the registering segment at each form upon the printingcylinder being out of the plane of operation of the registering segmentupon the impression cylinder that is not individual to such form', theaxis of the transfer cylinder being maintained substantially a fixeddistance from the axis of each impression cylinder, said transfercylinder and the second impression cylinder having grippers; and meansfor moving the grippers of one of these cylinders across the gap betweenthe cylinders to enable the grippers upon the second impression cylinderto take the sheet.

50. A rotary printing press including impression cylinders; a transfercylinder for transferring sheets from onel impression cylinder to' theother; a printing cylinder having forms thereupon each individual to animpression cylinder and co-extensive with the sheet supporting orimpression portion of such impression cylinder; mechanism for movingeach impression cylinder away from the printing cylinder when the formupon the printing cylinder that is individual to the other impressioncylinder is passing thereby and for restoring printing relation thereofwith the printing cylinder when its own form is passing thereby;mechanism for causing a plurality of revolutions of each of theimpression and transfer cylinders for cach revolution of the printingcylinder, the axis of the transfer cylinder being maintainedsubstantially a fixed distance from tho'axis of each impressioncylinder', said transfer cylinder and the second impression cylinderhaving grippers; and means for moving the grippers of the transfercylinder across the gap between the cylinders to enable the grippers ofthe transfer cylinder to present the sheet undergoing transfer to thegrippers of the second impression cylinder.

51. A rotary printing press including impression cylinders; a transfercylinder for transferring sheets from one impression cylinder to theother; a printing cylinder having forms thereupon each individual to animpression cylinder and co-extensive with thel sheet supporting orimpression portion of such impression cylinder; mechanism for movingeach impression cylinder away from the printing 'cylinder when the formupon the printingV cylinder that is individual to the other impressioncylinder is passing thereby and for restoring printing relation thereofwith the printing cylinder when its own form is passing thereby;mechanism for causing a plurality of revolutions of eachl of theimpression and transfer cylinders for each revolutionk of the lprintingcylinder; a registering mechanism foreach impression cylinder having oneelement upon each impression cylinder l and the other at the form uponthe printing cylinder whichis individual to such impression cylinder,the axis of the transfer cylinder being maintained substantially a fixeddistance from the aXis of each impression cylinder, said transfercylinder and the second impression cylinder having grippers; and meansfor moving the grippers of the transfer cylinder across the gap betweenthe cylinders to enable the grippers of the transfersl cylinder topresent the sheet undergoing` transfer. to the grippers of the secondimpression cylinder.

, 52. A rotary printing press including impression cylinders; a transfercylinder for transferring sheets from one impression cylinder to theother; a printing cylinder having forms thereuponeach individual to animpression cylinder and4 co-extensive with the sheet supporting oriimpression portion of suchimpression cylinder; mechanism for moving eachimpressioncylinder away from the` printing cylinder when the form uponthe printing cylinder that is individual to the other impressioncylinder is passing thereby and for restoring printing relation thereofwith the printing cylinder when its own form is passing thereby;mechanism for causing a plurality of revolutions of each of theimpression and transfer cylinders for each revolution of the vprintingcylinder; a registering mechanism for each impression cylinder onesegment upon each impression cylinder and a complemental segment at theform upon the printing cylinder which is individual to such impressioncylinder, the -aXis of the transfer cylinder being maintainedsubstantially a iiXed distance from the axis of each impressioncylinder, said transfer cylinder and the second impression cylinderhaving grippers; and means for moving .the grippers of the transfercylinder across the gap between the cylinders to enable thegrippers ofthe transfer cylinder to present the sheet undergoing transfer to thegrippers of the second impression cylinder.

53. A rotary printing press including impression cylinders; a transfercylinder for transferring sheets. from one impression cylinder to theother; a printing cylinder having forms thereupon each individual to animpression cylinder and Cro-extensive with the sheet` supporting orimpression portion of such impression cylinder; mechimpression cylinderand a coinplemental segment at the form upon the printing cylinder whichis individual to such impres-y sion cylinder, the registering segment ateach form upon the printing cylinder being out of the plane ofoperationof the registering segment upon the impression cylinder that isnot individual to such form, the aXis of the transfer cylinder beingmaintained-substantially a Xed distance from the aXis of each impressioncylinder, said transfer cylinder and the second impression cylinderhaving grippers; and means for moving the grippers of the transfercylinder across the gap between the cylinders to enable the grippers ofthe transfer cylinder to present the sheet undergoing transfer to thegrippers of the second impression cylinder.

54:. A rotary printing press including impression cylinders; atransfercylinder for transferring sheets from one impression cylinder to theother; a printing cylinder Vhaving forms thereupon each individual to animpression cylinder and co-eXtensive with the sheet supporting orimpression portion of such impression cylinder; mechanism for movingeach impression cylinder awayv from the printing cylinder when the formupon the printing cylinder thatis individual to the other impressioncylinder is passing thereby` and for restoring printing relation thereofwith the printing cylinder when its own form is passing thereby;mechanism for causing a plurality of revolutions of each of theimpression and transfer cylinders for each revolution of the printingcylinder, the

transfer cylinder being between the impression cylinders; and a shaftco-aXial with the transfer cylinder and in driving relation to all ofthe aforesaid cylinders.

55. A rotary printing press including impression cylinders; a transfercylinder for transferring sheets from one impression cylinder to theother; a printing cylinder having forms thereupon each individual to animpression cylinder and co-eXtensive with the sheet supporting orimpression portion of such impression cylinder ;mechanism forv moving'each impression cylinder away from the printing cylinder when the formupon the printing cylinder that is individual .to the other impressioncylinder is passing thereby and forrestoring printing relation thereofwith theprinting cylinder when its own form is passing thereby;mechanism for causing a plurality of revolutions of each of theimpression and transfer cylinders for each revolution of the printingcylinder, the transfer cylinder being between the impression cylinders;and a shaft co-aXial with the transfer cylinder and in driving relationto all of the aforesaid cylinders and operating the impression cylinderswithout the intervention of the printing cylinder.

56. A rotary printing press including impression cylinders; a transfercylinder for transferring sheets from one impression cylinder to theother; a printing cylinder having forms thereupon each individual to animpression cylinder and co-eXtensive with the sheet supporting orimpression portion of such impression cylinder; mechanism for movingeach impression cylinder away from the printing cylinder when the lformupon the printing cylinder that is individual to the other impressioncylinder is passing thereby and for restoring printing relation thereofwith the printing cylinder when its own form is passing thereby;mechanism for causing a plurality of revolutions of each of theimpression and transfer cylinders for each revolution ofthe printingcylinder, the transfer cylinderbeing between the impression cylinders;and a shaft co-aXial with the transfer cylinder and in driving relationwith the impression cylinders.

57. A rotary printing press including impression cylinders; atransferycylinder for transferring sheets from one impression cylinderto the other; a printing cylinder having forms thereupon each individualto an impression cylinder and co-eXtensive with the sheetsupporting orimpression portion of suchimp'ression cylinder; mechanism for movingeach impression cylinder away from the printing cylinder when the formupon the printing cylinderthat is individual to the other impressioncylinder is passing thereby and for restoring printing relation thereofwith the printing cylinder when its own form is passing thereby;mechanism for causing a plurality of revolutions of each of theimpression and transfer cylinders for each revolution of the printingcylinder, the transfer cylinder being between the impression cylinders;and a shaft co-axial with the transfer cylinder and in driving relationwith'the impression cylinders without the intervention ofthe printingcylinder.

58. A rotary printing press including impression cylinders; a transfercylinder for transferring sheets from one impression cylinder to theother; a printing cylinder having forms thereupon each individual to animpression cylinder and co-extensive with the sheet supporting orimpression portion of suchimpression cylinder; mechanism for moving eachimpression cylinder Vaway from the printing cylinder when the form uponthe printing` cylinder-that is individual-.to the other impressioncylinder is passing thereby and for restoring printing relation thereofwith the printing cylinder wheneits own form is passing thereby;mechanism for cansino' a plurality of revolutions of each ofV theimpression and transfer cylinders for each revolution of the printingcylinder; the transfer cylinder being be-tweenthe impression cylinders;a shaft co-aXial with the transfer cylinder and in driving relation toall of the aforesaid cylinders; a `gear upon said shaft; and a gearbelow thisgear for driving the gear that is-upon the shaft.

59. A rotary printing press including impression cylinders; a transfercylinder for transferring sheets from one impression cylinder to theother; a printing cylinder having forms thereupon each individual to animpression cylinder and co-extensive with the sheet supporting orimpression portion of such impression cylinder; mechanism-for movingeach impression cylinder away from the printing cylinder when theformnpon the printing` cylinder that is individual to the otherimpression cylinder is 'passing thereby and for restoring printing-relation thereof with the printing cylinder when its own form ispassing thereby; mechanism for causing a plurality of revolutions ofeach of the impression and transfer cylinders for each revolution of theprinting cylinder;` the transfer cylinder being betweeen the impressioncylinders; a shaft co-aXial with the transfer cylinder and in drivingrelation to all of the aforesaid cylinders a'nd operating the impressioncylinders without the intervention of the printing cylinder; a gear uponsaid shaft; anda gear below this gear for driving the gear that is uponthe shaft.

GO. A rotary printing press including impression cylinders; a transfercylinder for transferring sheets from one impression cylinder to theother; a printing cylinder hav- .ing forms thereupon cach-individual toan impression cylinder and co-extensive with the sheet supporting orimpression portion of such impression cylinder; mechanism for movingeach impression cylinder away-from the printing cylinder when the Aformupon the printing cylinder' that is indiif'idu'al to the otherimpression cylinder is passing thereby and for restoring printingrelation thereof with the printing cylinder when its own form is passingthereby; mechanism for causing a plurality of revolutions of each of theimpression and transfer cylinders for each revolution of the print-ing.cylinder; the transfer cylinderbeing between theimpression cylinders; ashaft co-aXi-al with the transfer cylinder and in driving relationimpression cylinder and coextensive with the sheet supporting orimpression portion of such impression cylinder; mechanism for movingeach impression cylinder away from the printing cylinder when the formupon the printing cylinder that is individual to the other impressioncylinder is passing thereby and for restoring printing relation thereofwith the printing cylinder whenfits own form is passing thereby;mechanism for causing a plurality of revolutions of each of theimpression and transfer cylinders for each revolution of the printingcylinder, the transfer cylinder being between the impression cylinders;a shaft co-aXial with the transfer cylinder and in driving relation withthe impression cylinders without the intervention of the printingcylinder; a gear upon said shaft; and a gear below this gear for drivingthe gear that is upon the shaft.

62. A printing press including an impression cylinder; a. transfercylinder normally spaced apart from the impression cylinder, bothcylinders adapted to carry sheets at the same time, the space betweenthe cylinders preventing the sheet upon the transfer4 cylinder fromcontacting with the freshly printed surface of the sheet upon theimpression cylinder; and means for effecting transfer of a sheet fromthe transfer cylinder to the impression cylinder.

63. A printing press including an impression Cylinder; a transfercylinder normally spaced apart from the impression cylinder, bothcylinders adapted to carry sheets at the same time, the space betweenthe cylinders preventing the sheet upon the transfer cylinderfromcontacting with the freshly printed surface of the sheet upon theimpression cylinder; grippers upon said cylinders; and means for movingthe grippers upon a cylinder across the gap between the cylinders toenable the grippers upon the impression cylinder to take the sheet.

64. A printing press including a cylinder; a second cylinder normallyspaced apart from the first cylinder, both cylinders adapted tocarry-sheets at the same time, the space between the cylinderspreventing the sheet upon the second cylinder' from contacting with thefreshly printed surface of the sheet upon-the first cylinder; and meansfor effecting transfer of a sheet from the second cylinder `to the firstcylinder.

65. A printing press including a cylinder;

a second cylinder. normally spaced apart,

from the first cylinder, both cylinders adapted to carry sheets at thesame` time, the space between vthe cylinders preventing the sheet uponthe second cylinder from contacting with the freshly printed surface ofthe sheet upon the first cylinder; grippers upon said cylinders; andmeans for moving the grippers upon a cylinder across the gap between thecylinders to enable the grippers upon the rst cylinder to take thesheet.

66. A printing press including an impression cylinder; a. transfercylinder normally spaced apart from the impression cylinder, bothcylinders adapted to carry sheets at the-same time, the space betweenthe cylinders preventing the sheet upon the transfer cylinder fromcontacting with the freshly printed surface of the sheet upon theimpression cylinder; grippersfupon said cylinders; and means for movingthe grippers upon a cylinder across the gap between the cylinders toenable the grippers upon the impression cylinder to take Vthe sheet andoperating to move the sheet across the gap without effecting creepage orbacklash of the sheet upon the cylinder from which the sheet is beingtransferred.

67 A printing press including a cylinder; a second cylinder normallyspaced apart from the first cylinder, both cylinders adapted to carrysheets at the same time, the space between the cylinders preventing thesheet upon the second cylinder from contacting with the freshly printedsurface o-f the sheet upon the first cylinder; grippers upon saidcylinders; and means for moving thegrippers upon a cylinder across theygap between the cylinders to enable the grippers upon the firstcylinder to take the sheet and operating to move the sheet across thegap without effecting creepage or backlash of the 105 sheet upon thecylinder from which the sheet is being transferred.

68. A printing press including an impression cylinder; a transfercylinder normally spaced apart from the impression cylinder, 110 bothcylinders adapted to carry sheets at thel same time, the space betweenthe cylinders preventing the sheet upon the transfer cylinder fromcontacting with the freshly printed surface of the sheet upon theimpression 115 cylinder; grippers upon said cylinders; means for movingthe grippers upon a cylinder across the gap between the cylinders toenable the grippers upon the impression cylinder to take the sheet; andmeshing gearsk 120 carried Vby said cylinders and co-aXial therewithwhose axes are maintained substantially a. fixed distance apart andwhosepitch circles touch at the middle of the gap.

69. A printingluress including a cylinder; 125 a second cylindernormally spaced apartv from the first cylinder, both cylinders adaptedto carry sheets at the same time, the space between Ythe cylinderspreventing the sheet upon the second cylinder from4 con-.180

